Remote Control
R&S
®
CMW500
139User Manual 1173.9463.02 ─ 06
Example: INITiate:GPRF:MEASurement:POWer
INITiate:<Application>:MEASurement<i>
Starts the measurement in the repetition mode set via
CONFigure:<Application>:MEASurement<i>:<Context>:REPetition (sin-
gle-shot or continuous, see Statistical Settings). The command resets the counters for
the evaluation period and statistics cycle to zero and starts a timer. If the measurement
has not completed the first measurement cycle when the timer expires, the measurement
is stopped. The timeout value can be configured individually for each measurement.
INITiate... can be used irrespective of the current measurement state. An initiated
measurement reserves all necessary system resources and enters the "RUN" state. If
the hardware and system resources are already assigned to another firmware applica-
tion, this firmware application is released in order to start the measurement; see Resource
and Path Management.
If a previously initiated measurement (which may be of the same type) is still running, the
new measurement remains in the "PENDing" or "QUEUed" Measurement Substates (see
Queuing of Measurements) and is activated only after the previous measurement has
completed the current measurement cycle. After the new measurement has entered the
"RUN" state, the previous results are discarded.
If the measurement cannot be started due to an unrecoverable resource conflict (e.g. a
missing software option) it remains in the OFF state. The SCPI error "-213, Init
ignored, ...", is generated. See also Causes for Task Conflicts.
Conflicting settings cause restart of the measurement
Many measurement parameters (e.g. RF path settings, filter settings, etc.) have a direct
impact on the measurement results. Changing these parameters while the measurement
is running results in wrong results.
To avoid misleading results, a running measurement is re-started if a parameter with
direct impact on the results is changed. All values acquired so far are discarded; the
statistics counters are re-set to zero.
READ...? command
READ...? can be used instead of INITiate... to start a (single-shot) measurement.
READ...? also returns the results; see Retrieving Measurement Results.
ABORt:<Application>:MEASurement<i>
Aborts the current measurement immediately and causes the measurement to enter the
OFF state. All measurement values are set to NAV; the hardware resources are released
for other measurements.
STOP:<Application>:MEASurement<i>
Halts the measurement immediately. The measurement enters the RDY state; the
R&S CMW500 retains all valid measurement results. Moreover, the hardware and system
resources continue to be allocated to the measurement.
Control of the Instrument
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